package cn.com.yiqi.wsc.shiro.realm;


import cn.com.yiqi.wsc.entity.user.UserEntity;
import cn.com.yiqi.wsc.enumeration.CommonEnum;
import cn.com.yiqi.wsc.service.user.UserService;
import org.apache.shiro.authc.*;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;

public class UserRealm extends AuthorizingRealm {


    private UserService userService;


    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        String username = (String) principals.getPrimaryPrincipal();

        SimpleAuthorizationInfo authorizationInfo = new SimpleAuthorizationInfo();
        authorizationInfo.setRoles(userService.findRoles(username));
        authorizationInfo.setStringPermissions(userService.findPermissions(username));
        return authorizationInfo;
    }

    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {

        String username = (String) token.getPrincipal();
        UserEntity user = userService.findUsernameAndPasswordByUsername(username);

        if (user == null) {
            throw new UnknownAccountException();//没找到帐号
        }

        if (CommonEnum.DISABLE.getValue().equals(user.getEnabled())) {
            throw new LockedAccountException(); //帐号锁定
        }

        //交给AuthenticatingRealm使用CredentialsMatcher进行密码匹配，如果觉得不好可以自定义实现
        SimpleAuthenticationInfo authenticationInfo = new SimpleAuthenticationInfo(
                user.getUsername(), //用户名
                user.getPassword(), //密码
//                ByteSource.Util.bytes(user.getPassword()),//salt=username+salt  没有salt
                getName()  //realm name
        );
        return authenticationInfo;
    }

    @Override
    public void clearCachedAuthorizationInfo(PrincipalCollection principals) {
        super.clearCachedAuthorizationInfo(principals);
    }

    @Override
    public void clearCachedAuthenticationInfo(PrincipalCollection principals) {
        super.clearCachedAuthenticationInfo(principals);
    }

    @Override
    public void clearCache(PrincipalCollection principals) {
        super.clearCache(principals);
    }

    public void clearAllCachedAuthorizationInfo() {
        getAuthorizationCache().clear();
    }

    public void clearAllCachedAuthenticationInfo() {
        getAuthenticationCache().clear();
    }

    public void clearAllCache() {
        clearAllCachedAuthenticationInfo();
        clearAllCachedAuthorizationInfo();
    }

    public void setUserService(UserService userService) {
        this.userService = userService;
    }
}
